Ford: The Blue Oval earned top scores in two categories: family cars (Fusion hybrid) and large SUVs (Ford Flex EcoBoost). Ninety percent of Fords have at least average reliability.

General Motors: With 69 percent of models having a reliability of average or better, GM has made the most progress of the three domestic brands. For instance, Chevrolet jumped from 50 percent reliability in last year's survey to 83 percent this year.